| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.pig.backend.hadoop.executionengine.tez.plan; |
| |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.apache.pig.impl.plan.DependencyOrderWalker; |
| import org.apache.pig.impl.plan.VisitorException; |
| |
| import com.google.common.collect.Sets; |
| |
| public class TezPlanContainerUDFCollector extends TezPlanContainerVisitor { |
| private Set<String> udfs = Sets.newHashSet(); |
| |
| /** |
| * @param ps PrintStream to output plan information to |
| * @param plan tez plan to print |
| */ |
| public TezPlanContainerUDFCollector(TezPlanContainer planContainer) { |
| super(planContainer, new DependencyOrderWalker<TezPlanContainerNode, TezPlanContainer>(planContainer)); |
| } |
| |
| @Override |
| public void visitTezPlanContainerNode(TezPlanContainerNode tezPlanContainerNode) throws VisitorException { |
| Iterator<TezOperator> it = tezPlanContainerNode.getTezOperPlan().iterator(); |
| while (it.hasNext()) { |
| udfs.addAll(it.next().UDFs); |
| } |
| } |
| |
| public Set<String> getUdfs() { |
| return udfs; |
| } |
| } |
| |